Visiting the Medano River has been one of the highlights of my trip so far. Each year for a few weeks during the late spring, the river "surges," a unique occurrence found in few other places around the world. The river has a sandy bed and the flow of the water creates mini-sand dunes on the bed of the stream that slowly move upstream. These tiny dams burst every now and then, sending a surge of water up to several inches high downstream.

I was lucky to be there during the peak surging season and it was great fun to wade across the stream. The kids loved it.